Glass jar



FIG. 1 is an upper perspective view of a glass jar showing my new design.

FIG. 2 is a side view thereof;

FIG. 3 is an opposite side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate portions of the glass jar that form no part of the claimed design. 

CLAIM The ornamental design for a glass jar, as shown and described. 